15 Winter Dinner Casseroles in Three Steps or Less

These casserole recipes serve as filling main dishes, and they are easy to prepare with only three steps or less. Plus, with seasonal ingredients like kale, onion, potatoes and sweet potatoes, these comforting meals embrace winter's flavors to the fullest. Recipes like our Philly Chicken Cheesesteak Casserole and Vegan Shepherd's Pie are well suited for a cozy evening.